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Impact of Web-based interventions on PTSD: sensitivity analyses.
| Analysis | Comparisons, n | Participants, n | SMDa (95% CI) | P | I2 statistic, % |
| Primary analysis | 38 | 3832 | -0.35 (-0.45 to -0.25) | <.001 | 81 |
| Excluding studies with high risk of bias | 30 | 2340 | -0.36 (-0.50 to -0.21) | <.001 | 81 |
| Excluding studies without PTSD as a primary outcome | 35 | 3551 | -0.34 (-0.44 to -0.24) | <.001 | 80 |
aSMD >0 favors control, and SMD <0 favors active intervention.
